Ivan Kalik wrote:
And how is user supposed to open that "topup page" if he is looking for
Google, for instance?
Instead of Google's IPs your DNS servers would return your web server,
with
the "topup page".
What you want *is* a captive portal - it will
capture the user and redirect him from the requested page onto the one
you
want him to see.
I didn't say I agree with the DNS scheme.
I do agree that a captive portal is the best solution.
I was simply mentioning that it is not always possible.
It is possible - that's what you are making. DNS scheme is not going to
work. All user has to do to defeat that is to change the assigned DNS
servers - and he can surf the net. You need a proper captive portal where
user can't simply change DNS info and/or assigned IP and escape.
Our local telco includes a filter for you as well, with the DNS scheme, so
the client can only reach your topup server.
--
Johan Meiring
Cape PC Services CC
Tel: (021) 883-8271
Fax: (021) 886-7782
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